1. Which is the only one of these that is part of a disc brake system?

2. Which of these persons can perform brake readjustments on manual and automatic slack adjusters?

3. Which of these vehicles is most likely to have air brakes?

4. Which of these vehicles is most likely to have air brakes?In an air brake system, what does the governor do?

5. Why do air brake systems have dual-service tanks?

6. Why is it important for you to know where compressed air from the air brake system on your vehicle exhausts?

7. If an air brake system has an air dryer, where will it be found?

8. Spring brakes are applied when?

9. In a normal braking situation, most modern air brake vehicles will use automatic valves to do what?

10. The supply tank for an air brake system does what?

11. The air tanks for an air brake system can be found where?

12. A warning device must alert the driver if the pressure in the air brake system falls to what level?

13. The air compressor for an air brake system draws its power from where?

14. Spring brakes will normally start to apply when system pressure drops below?

15. Moisture in an air brake system can be dangerous for what reason?

16. In an air brake system, the service brake subsystem is used for what?

17. A braking system works by converting mechanical energy into what?

18. Where will you find air brake chambers?

19. When draining tanks on an air brake system, which tank should be drained first?

20. Many vehicle manufacturers recommend draining moisture and oil from a vehicle’s air tanks at what interval?

21. The actual air brake system pressure range must never be lower than 552 kPa (80 psi) or higher than

22. In an air brake system, what purpose does the alcohol evaporator serve?

23. At what pressure do safety valves on air brake systems normally open?

24. At what pressure do safety valves on air brake systems normally open?Where will you find the air pressure gauge for an air brake system?

25. The pushrod stroke is produced by compressed air entering?

26. Under the Ontario Highway Traffic Act, an air brake system should never drop below what pressure?

27. If you are driving and a warning tells you that your air pressure is low, what should you do?

28. The spring brake subsystem is designed for which of these?

29. Which of these can you expect from an air brake system that you will not get in a hydraulic brake system?

30. As you press down on the brake pedal, what happens to the valve which is attached to it?